Two columns Detail View

Hello everybody

I would like to make the view.detail.php of a custom module to be displayed in two columns
Left: The current module's detail view.
Right: The subpanels petaining to the module.
My detailviewdefs.php already has maxColumns set to 2.
But the detail view displays only one column.
Would anybody please tell me what else shoud be done?

Re: Two columns Detail View

I figured it out... For those interested this is what I've done:
I copied the include/DetailView/DetailView.tpl to custom/include/DetailView/DetailView.tpl
I added a new class (panel_detailview_tabs) to the detailview_tabs div (found at the very beginning of the file):

I copied the currently used theme from the /themes folder to the /custom/themes folder and added this code to the themes/MyTheme/css/style.css file:

.panel_detailview_tabs
{
width: 48%;
float: left;
margin: 5px;
}

#subpanel_list
{
width: 48%;
float: left;
margin: 5px;
}

Now the detail view of every module is split into two columns.
The left column displays the actual detail view of the account, lead or contact (or whichever module you are viewing)
And the right column displays the subpanels of all related modules.